52571920461989 has 2 divisors, whose sum is σ = 52571920461990. Its totient is φ = 52571920461988.

The previous prime is 52571920461923. The next prime is 52571920462007. The reversal of 52571920461989 is 98916402917525.

52571920461989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52504298620225 + 67621841764 = 7245985^2 + 260042^2 .

It is a cyclic number.

It is not a de Polignac number, because 52571920461989 - 2³² = 52567625494693 is a prime.

It is a super-2 number, since 2×52571920461989² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52571920461689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26285960230994 + 26285960230995.

It is an arithmetic number, because the mean of its divisors is an integer number (26285960230995).

Almost surely, 2^{52571920461989} is an apocalyptic number.

It is an amenable number.

52571920461989 is a deficient number, since it is larger than the sum of its proper divisors (1).

52571920461989 is an equidigital number, since it uses as much as digits as its factorization.

52571920461989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97977600, while the sum is 68.

The spelling of 52571920461989 in words is "fifty-two trillion, five hundred seventy-one billion, nine hundred twenty million, four hundred sixty-one thousand, nine hundred eighty-nine".